This undated page from NSA’s internal WikiInfo describes VALIANTSURF “the coverterm for the development of Data Network Cipher (DNC) exploitation capabilities in TURMOIL”: see the Der Spiegel story Prying Eyes: Inside the NSA’s War on Internet Security, 28 December 2014.

﻿VALIANTSURF - Wikiinfo
The accredited security level of this system is: TOP SECRET//SI-GAMMA/TALENT KEYHOLE//ORCON/PROPIN/RELIDO/REL TO USA, FVEY *
TOP SECRET1/SI/10RCON1REL TO USA, FVEY
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